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Re: [PATCH 1/2] wifi: brcmfmac: Demote vendor-specific attach/detach messages to info

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On Mon, Apr 17, 2023 at 04:54:33PM +0900, Hector Martin wrote:
> On 16/04/2023 21.46, Greg KH wrote:
> > On Sun, Apr 16, 2023 at 09:42:17PM +0900, Hector Martin wrote:
> >> People are getting spooked by brcmfmac errors on their boot console.
> >> There's no reason for these messages to be errors.
> >>
> >> Cc: stable@xxxxxxxxxxxxxxx
> >> Fixes: d6a5c562214f ("wifi: brcmfmac: add support for vendor-specific firmware api")
> >> Signed-off-by: Hector Martin <marcan@xxxxxxxxx>
> >> ---
> >>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c | 4 ++--
> >>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c | 4 ++--
> >>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c | 4 ++--
> >>  3 files changed, 6 insertions(+), 6 deletions(-)
> >>
> >> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
> >> index ac3a36fa3640..c83bc435b257 100644
> >> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
> >> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
> >> @@ -12,13 +12,13 @@
> >>  
> >>  static int brcmf_bca_attach(struct brcmf_pub *drvr)
> >>  {
> >> -	pr_err("%s: executing\n", __func__);
> >> +	pr_info("%s: executing\n", __func__);
> > 
> > Why are these here at all?  Please just remove these entirely, you can
> > get this information normally with ftrace.
> > 
> > Or, just delete these functions, why have empty ones at all?
> 
> This is a new WIP code path that Arend introduced which currently
> deliberately does nothing (but is intended to hold firmware vendor
> specific init in the future). So we can just drop the messages, but I
> don't think we want to remove the code entirely.

Why have empty functions that do nothing?  If you want to put
vendor-specific anything in here, add it when that is needed.  We don't
like having dead code laying around in the kernel if at all possible.

thanks,

greg k-h



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